13 \O (e442, 1447 T Fyl55 Net Counts Per Minute a 10=t Fig. 5, AL 1 Gamma-ray spectra of equal amounts of old soil from different depths. XM
13 \O (e442, 1447 T Fyl55 Net Counts Per Minute a 10=t Fig. 5, AL 1 Gamma-ray spectra of equal amounts of old soil from different depths. XM